EP 3633272 B1 20210324 - METHOD FOR RECOVERING HEAT FROM FLUE GAS OF BOILER, AND ARRANGEMENT
Title (en)
METHOD FOR RECOVERING HEAT FROM FLUE GAS OF BOILER, AND ARRANGEMENT
Title (de)
VERFAHREN ZUR WÄRMERÜCKGEWINNUNG AUS RAUCHGAS EINES KESSELS UND ANORDNUNG
Title (fr)
PROCÉDÉ DE RÉCUPÉRATION DE CHALEUR À PARTIR DE GAZ COMBUSTIBLES DE CHAUDIÈRE ET AGENCEMENT
Publication
Application
Priority
FI 20185835 A 20181004
Abstract (en)
[origin: EP3633272A1] A method and an arrangement for recovering heat from flue gas of a boiler (10), the method comprising passing the flue gas (G) though a flue gas cooling unit (1), cooling the flue gas (G) in the flue gas cooling unit (1), said cooling comprising cooling by a circulation (3) of a cooling liquid (CL), feeding at least part of said cooling liquid (CL) heated in the flue gas cooling unit (1) into a heat pump (2, 2a, 2b), the heat pump (2, 2a, 2b) being coupled to a circulation (5) of heat-transfer fluid (HT, HT1, HT2), transferring condensing heat (H) of said heat-transfer fluid (HT, HT1, HT2) into said cooling liquid (CL) fed in the heat pump (2, 2a, 2b) for raising the temperature of said cooling liquid (CL), feeding said cooling liquid (CL) heated in the heat pump (2, 2a, 2b) in a combustion air humidifier (4), and humidifying combustion air to be fed in the boiler (10) in the combustion air humidifier (4).
IPC 8 full level
F24D 10/00 (2006.01); F01K 9/00 (2006.01); F01K 17/06 (2006.01); F23J 15/04 (2006.01); F23J 15/06 (2006.01); F24D 15/04 (2006.01); F24H 8/00 (2006.01)
CPC (source: EP FI)
F23J 15/04 (2013.01 - EP FI); F23J 15/06 (2013.01 - FI); F23L 7/005 (2013.01 - FI); F24D 10/00 (2013.01 - EP); F24D 15/04 (2013.01 - EP); F24H 4/02 (2013.01 - FI); F24H 8/003 (2013.01 - EP FI); F28C 3/08 (2013.01 - FI); F01K 17/06 (2013.01 - EP); F23J 15/06 (2013.01 - EP); F24D 2200/12 (2013.01 - EP); F24D 2200/18 (2013.01 - EP); Y02B 10/70 (2013.01 - EP); Y02B 30/00 (2013.01 - EP); Y02B 30/17 (2018.04 - EP); Y02B 30/52 (2013.01 - EP); Y02E 20/14 (2013.01 - EP); Y02E 20/30 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3633272 A1 20200408; EP 3633272 B1 20210324; DK 3633272 T3 20210614; FI 128210 B 20191231; FI 20185835 A1 20191231; PL 3633272 T3 20211213
DOCDB simple family (application)
EP 19200819 A 20191001; DK 19200819 T 20191001; FI 20185835 A 20181004; PL 19200819 T 20191001